var express = require("express"),
    app = express(),
    server = require("http").createServer(app);

// server.listen(9999);
app.use(express.static("./build"));
app.get("/", (req, res) => {
    res.sendFile(__dirname + 'index.html')
});

app.listen(9999, () => {
    console.log('web服务已启动，请访问：http://localhost:9999');
});